Edwin s



(No Model.)

B. S. LEAYORAFT.

Pneumatic Dispatch Tube Receiver.

No. 242,458. Pafentedjune 7,1881.

NITED STATES PATENT OFFICE.

EDWIN S. LEAYORAFT, OF NEW YORK, N. Y.

PNEUMATIC DISPATCH-TUBE RECEIVER.

SPECIFICATION forming part of Letters Patent No. 242,458, dated June '7, 1881. Application filed November 1'7, 1880. (No model.)

To all whom it may concern:

Be itknown that I, EDWIN S. LEAYCRAF'I, a citizen of the United States, and a resident of the city, county, and State of New York, have invented a new and useful Improved Receptacle or Receiver, which shall receive the parcel-carrier of a pneumatic dispatch-tube without injury to the carrier or receiver; and I do hereby declare that the following, taken in connection with the accoin mnying drawings, is a full, clear, and accurate description of the same.

In the drawings, Figure 1 represents a side view of my improvement. Fig. 2 shows a plan view.

I make my receiver as follows:

A shows the outlet ofa pneumatic tube, and B my improv'ed receiver.

The receiver B is madein the form ot'a scroll or volute, the inlet end of which scroll is arranged concentric. and parallel with the axis of the pneumatic tube. The said scroll or volute-formed prefcrabl y of four rodsis made with the curve of the scroll diminishing from the inlet end of the scroll, at the point where the parcel-carrier is received from the pneumatic tube, toward the outlet end of the scroll. The scroll B,formedin this manner, has a twist which increases from its inlet end toward its outlet, so that the parcel carrier, as it is ejected from the pneumatic tube and received in the scroll, has its force distributed over the inner surface of the scroll, thereby producing friction sufficient to entirely avoid the shock of its eyectiomwhether the parcel-carrierislightly or heavily loaded.

Having thus described my improvement, what I claim, and desire to secure by Letters Patent, is c In combination with apneumatic dispatchtube, the receiver B, formed in a scroll, with the curve of the same diminishing from its inlet toward its outlet, substantially as described, and for the purposes set forth.

In testimony whereof I have hereunto set 5 my hand this 16th day of November, 1880.

EDWIN S. LEAYCRAFT. In presence of- CHARLES G. (30E, LoUIs W. Fuos'r. 

